Simulation of acid gas removal packed tower

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Dear experts: I am a new user of Aspen Plus, and I need to use this software to simulate the design of a packed tower for removing acidic gases from flue gas. A 15% NaOH solution is used as the washing liquid, which flows into a washing tank. The conditions of the flue gas are as follows: 1. Flue gas volume: 9500 Nm3/h; 2. Flue gas temperature: 160–170°C; 3. Flue gas pressure: atmospheric pressure; 4. Flue gas composition: N2: 62.7%, O2: 6%, H2O: 21.2%, CO2: 10.1%; other components: HCl: 2500 mg/Nm3, HF: 50 mg/Nm3, SOx: 1600 mg/Nm3. The allowable levels of acidic gases in the flue gas at the exit of the packed tower are: SO2 ≤ 300 mg/m3, HCl ≤ 70 mg/m3, HF ≤ 7 mg/m3. Both absorption and reaction processes occur during the acid removal process, and I’m not sure how to establish a model for this. I seek help from all of you!